Estimation of needle populations on young, open-grown Douglas-fir by regression and life table analysis
By: R.G. Mitchell.
Contributors: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: USDA Forest Service research paper PNW -- 181.
Publisher: Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service
Published: 1974
Place of publication: Portland, Or
Language: eng
Number of pages: 14
Subjects: Douglas fir.; Regression analysis.
Notes: Cover title.

Bibliography: p. 9-10.